Spatially resolved monitoring of the evolution of the breakdown of the quantum Hall effect: Direct observation of inter-Landau-level tunnelingI. I. Kaya, G. Nachtwei, K. von Klitzing and K. EberlEurophys. Lett., 46 1 (1999) 62-67DOI: https://doi.org/10.1209/epl/i1999-00563-6